Under what circumstances may you pass on the left at an intersection?

Passing on the left at an intersection is permissible when there are two or more lanes on your side. This is because multiple lanes allow drivers to maneuver around slower vehicles without needing to cross into oncoming traffic. In such a scenario, it is important to ensure that the lane being utilized for passing is indeed a valid lane for overtaking, and that it does not conflict with the flow of traffic.

In contrast, while passing on the left when a vehicle is turning left might seem plausible, it does raise safety concerns, as the turning vehicle could obstruct or change lanes unexpectedly. Similarly, a single lane does not offer the space needed for safe passing maneuvers, while a one-way street scenario does not typically present an intersection where lane direction changes would apply. Thus, the most appropriate and safe instance for passing on the left occurs when there are multiple lanes available on your side of the road, providing the necessary space to do so safely.